smarthbs/dist/smarthbs.variables.js
2019-09-10 17:58:14 +02:00

74 lines
5.2 KiB
JavaScript

"use strict";
// This file contains code that makes it easy to search handlebar templates for variables.
// Why? To get a clue if you are missing some.
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
result["default"] = mod;
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const plugins = __importStar(require("./smarthbs.plugins"));
// the curly regex objects
let tripleCurlyRegex = /{{{\s*[\w\.]+\s*}}}/g;
let doubleCurlyRegex = /{{\s*[\w\.]+\s*}}/g;
let nameInCurlsRegex = /[\w\.]+/;
/**
* finds all variables in a handlebars template
* @param hbsStringArg
*/
exports.findVarsInHbsString = async (hbsStringArg) => {
let hbsString = hbsStringArg; // make sure we have a new string object that we may destroy
let varNameArray = [];
let tripleCurlyMatches = hbsString.match(tripleCurlyRegex);
if (tripleCurlyMatches) {
hbsString = hbsString.replace(tripleCurlyRegex, '[[[replaced]]]');
varNameArray = varNameArray.concat(tripleCurlyMatches);
}
let doubleCurlyMatches = hbsString.match(doubleCurlyRegex);
if (doubleCurlyMatches) {
varNameArray = varNameArray.concat(doubleCurlyMatches);
}
// make sure we are clean from curly brackets
varNameArray = varNameArray.map(x => {
return x.match(nameInCurlsRegex)[0];
});
// make sure are uniq
varNameArray = plugins.lodashUniq(varNameArray);
return varNameArray;
};
/**
* checks if supplied variables satisfy an handlebars template
* @param hbsStringArg
* @param varObjectArg
* @return string array with missing variable names
*/
exports.checkVarsSatisfaction = async (hbsStringArg, varObjectArg) => {
// required vars as combined deep string with . notation
let requiredVarStrings = await exports.findVarsInHbsString(hbsStringArg);
// comparison objects
let suppliedVarsObject = varObjectArg;
let missingVarsObject = [];
// building the
for (let stringVar of requiredVarStrings) {
let splittedVars = stringVar.split('.');
let requiredPointer = suppliedVarsObject;
for (let i = 0; i < splittedVars.length; i++) {
let splitVar = splittedVars[i];
let varAvailable = requiredPointer[splitVar] !== undefined;
if (varAvailable && splittedVars.length === i + 1) {
// ok
}
else if (varAvailable) {
requiredPointer = requiredPointer[splitVar];
}
else {
missingVarsObject.push(stringVar);
i = splittedVars.length;
}
}
}
return missingVarsObject;
};
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